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A uniform circular disc of mass 2m and r...

A uniform circular disc of mass 2m and radius R placed freely on a horizontal smooth surface as shown in the figure. A particle of mass m is connected to the circumference of the disc with a massless string. Now an impulse J is applied on the particle in the directions shown by dotted line. The acceleration (in `m//s^2` ) of centre of mass of the disc just after application of impulse is . (If J = 10 N - sec, m `=sqrt10 kg and R = 25 cm` )

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